Access to MLT debug info (command line option)

data/man/kdenlive.1

 .\" This file was generated by kdemangen.pl
-.TH KDENLIVE 1 "Nov 2008" "K Desktop Environment" "An open source video editor."
+.TH Kdenlive 1 "Aug 2018" "KDE" "An open source video editor."
 .SH NAME
 kdenlive \- An open source non\-linear video editor.
 .SH SYNOPSIS
 kdenlive [Qt\-options] [KDE\-options] [options] [file]
 .SH DESCRIPTION
 Kdenlive is an open source non\-linear video editor which supports a
-large number of formats for editing, including DV, AVCHD (experimental support) and HDV. Kdenlive relies on several other open source projects, such as FFmpeg and MLT video framework.
+large number of formats for editing.
+It relies on several other open source projects,
+such as FFmpeg and MLT video framework.
 .SH OPTIONS
 .SS
 .SS Arguments:
@@ -17,6 +19,9 @@ Document to open
 .TP
 .B  \-\-mlt\-path  <path>
 Set the path for MLT environnement
+.TP
+.B  \-\-mlt\-log  <verbose/debug>
+Set MLT log level
 .SS
 .SS Generic options:
 .TP
@@ -148,11 +153,9 @@ the result of calling melt, ffmpeg, etc. This can be used for debugging.
 .SH SEE ALSO
 .BR kdenlive_render (1).
 Please see the homepage at
-.BR http://www.kdenlive.org/
+.BR https://www.kdenlive.org/
 .br
 .SH AUTHORS
 .nf
 Jean\-Baptiste Mardelle <jb@kdenlive.org>
 .br
-Marco Gittler <g.marco@freenet.de>
-.br

src/main.cpp

@@ -139,6 +139,7 @@ int main(int argc, char *argv[])
 
     parser.addOption(QCommandLineOption(QStringList() <<  QStringLiteral("config"), i18n("Set a custom config file name"), QStringLiteral("config")));
     parser.addOption(QCommandLineOption(QStringList() <<  QStringLiteral("mlt-path"), i18n("Set the path for MLT environment"), QStringLiteral("mlt-path")));
+    parser.addOption(QCommandLineOption(QStringList() <<  QStringLiteral("mlt-log"), i18n("MLT log level"), QStringLiteral("verbose/debug")));
     parser.addOption(QCommandLineOption(QStringList() <<  QStringLiteral("i"), i18n("Comma separated list of clips to add"), QStringLiteral("clips")));
     parser.addPositionalArgument(QStringLiteral("file"), i18n("Document to open"));
 
@@ -152,6 +153,11 @@ int main(int argc, char *argv[])
 
     QString clipsToLoad = parser.value(QStringLiteral("i"));
     QString mltPath = parser.value(QStringLiteral("mlt-path"));
+    if (parser.value(QStringLiteral("mlt-log")) == QStringLiteral("verbose")) {
+        mlt_log_set_level( MLT_LOG_VERBOSE );
+    } else if (parser.value(QStringLiteral("mlt-log")) == QStringLiteral("debug")) {
+        mlt_log_set_level( MLT_LOG_DEBUG );
+    }
     QUrl url;
     if (parser.positionalArguments().count()) {
         url = QUrl::fromLocalFile(parser.positionalArguments().at(0));